CN111952738A - Alternating-current connection copper bar with auxiliary heat dissipation function for motor controller - Google Patents
Alternating-current connection copper bar with auxiliary heat dissipation function for motor controller Download PDFInfo
- Publication number
- CN111952738A CN111952738A CN202010881171.5A CN202010881171A CN111952738A CN 111952738 A CN111952738 A CN 111952738A CN 202010881171 A CN202010881171 A CN 202010881171A CN 111952738 A CN111952738 A CN 111952738A
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- CN
- China
- Prior art keywords
- copper bar
- heat dissipation
- injection molding
- molding body
- motor controller
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
- H01R4/58—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation characterised by the form or material of the contacting members
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
- H01R13/46—Bases; Cases
- H01R13/52—Dustproof, splashproof, drip-proof, waterproof, or flameproof cases
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
- H01R4/70—Insulation of connections
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- Motor Or Generator Frames (AREA)
Abstract
The invention discloses an alternating-current connecting copper bar with an auxiliary heat dissipation function for a motor controller, wherein a three-phase electrode is arranged at an injection molding body, a first copper bar, a second copper bar and a third copper bar are also respectively arranged at the injection molding body, and the first copper bar, the second copper bar and the third copper bar form the three-phase copper bar matched with the three-phase electrode. The technical effects are as follows: 1. the cost of the whole power assembly is reduced, and compared with a connector wiring harness scheme, the cost is reduced by about 2/3; 2. the structure is compact, the arrangement space is optimized, and meanwhile, the bending flexibility of the copper bar is higher, so that the whole vehicle is more friendly to arrangement; 3. the heat dissipation function is achieved, the heat dissipation capacity of the power module is improved, and the power performance of the whole vehicle is improved; 4. the oil-proof sealing design improves the reliability of the sealing performance.
Description
Technical Field
The invention relates to the technical field of alternating-current connection copper bars, in particular to an alternating-current connection copper bar with an auxiliary heat dissipation function for a motor controller, and particularly relates to a mechanical connection structure of the alternating-current connection copper bar.
Background
In high-voltage power transmission products such as new energy automobiles and the like, under any weather condition and any automobile application working condition, a motor controller converts two-phase direct current into three-phase alternating current through a power electronic power module and outputs the three-phase alternating current to a motor, and driving force is generated in a changing magnetic field to drive an electric vehicle.
The power module three-phase input is between the motor three-phase input, requiring power connections. This connection can be made by crimping the wire harness with a high-voltage connector.
As shown in fig. 3, the principle of the connection is that the connector with the sealing structure on both sides is respectively connected with the motor cavity and the motor controller cavity, and the cable with the sealing structure is used for connection in the middle.
The problems of the technology are as follows: firstly, the cost is high due to the adoption of the connection of a copper cable and a connector; secondly, the two connectors occupy larger space and are not friendly to the arrangement of the whole vehicle; thirdly, the temperature resistance of the power device is limited due to the upper limit, so that the power performance of the whole vehicle is limited, and the structure and the heat conduction capability of the connecting wire are limited; in addition, to the high performance driving motor who adopts oily cooling, the cooling oil can get into the cable through the connector terminal, and then enters into the machine controller cavity, and the inside electronic components of machine controller uses under the oil gas environment for a long time, and the product is ageing with higher speed then, and components and parts short circuit, and then serious risk such as normal power loss of output.
Disclosure of Invention
The invention aims to provide an alternating current connecting copper bar with an auxiliary heat dissipation function for a motor controller, which has the function of connecting a power module of the motor controller and a three-phase line of a driving motor, is bent by the copper bar and is matched with a plastic wrapping mode, and a fixed structure characteristic and a sealing structure characteristic are matched on the plastic, so that the integration level is high, and the defects in the prior art are overcome.
In order to achieve the purpose, the technical scheme of the invention is as follows: an alternating current connection copper bar with an auxiliary heat dissipation function for a motor controller comprises an injection molding body, wherein a three-phase electrode is arranged at the injection molding body, a sealing groove is formed at the injection molding body at the periphery of the three-phase electrode, a sealing ring is embedded in the sealing groove, a first copper bar, a second copper bar and a third copper bar are respectively arranged at the injection molding body, the first copper bar, the second copper bar and the third copper bar form a three-phase copper bar matched with the three-phase electrode, the first copper bar, the second copper bar and the third copper bar are positioned on the same horizontal plane, the three-phase copper bar and the three-phase electrode are distributed at an included angle of ninety degrees at the injection molding body, the other end of the first copper bar extends towards the other side and penetrates out of the other side of the injection molding body to form a first copper bar heat dissipation end, the other end of the second copper bar extends towards the other side and, and the end part of the injection molding body is penetrated to form a third copper bar heat dissipation end, the first copper bar heat dissipation end and the second copper bar heat dissipation end are positioned on the same horizontal plane, a plurality of assembly bushings are arranged at the injection molding body, and the assembly bushings and the first copper bar heat dissipation end and the second copper bar heat dissipation end are positioned on the same side of the injection molding body.
The invention discloses an alternating current connection copper bar with an auxiliary heat dissipation function for a motor controller, which has the technical effects that: 1. the cost of the whole power assembly is reduced, and compared with a connector wiring harness scheme, the cost is reduced by about 2/3; 2. the structure is compact, the arrangement space is optimized, and meanwhile, the bending flexibility of the copper bar is higher, so that the whole vehicle is more friendly to arrangement; 3, the heat dissipation function is achieved, the heat dissipation capacity of the power module is improved, and the power performance of the whole vehicle is improved; 4. the oil-proof sealing design improves the reliability of the sealing performance.
Drawings
FIG. 1 is a schematic view of the structure of the present invention.
Fig. 2 is a perspective view of the present invention.
Fig. 3 is a schematic diagram of a prior art structure.
Detailed Description
The invention will be further described with reference to the accompanying drawings.
The invention discloses an alternating current connection copper bar with an auxiliary heat dissipation function for a motor controller, which is different from the prior art in that: the three-phase copper bar heat dissipation plastic comprises an injection molding body 1, a three-phase electrode 2 is arranged at the position of the injection molding body 1 at the periphery of the three-phase electrode 2, a sealing groove 3 is formed at the position of the injection molding body 1, a sealing ring 4 is embedded in the sealing groove 3, a first copper bar 5, a second copper bar 6 and a third copper bar 7 are further respectively arranged at the position of the injection molding body 1, the first copper bar 5, the second copper bar 6 and the third copper bar 7 form a three-phase copper bar matched with the three-phase electrode 2, the first copper bar 5, the second copper bar 6 and the third copper bar 7 are positioned on the same horizontal plane, the three-phase copper bar and the three-phase electrode 2 are distributed at an included angle of ninety degrees at the position of the injection molding body 1, the other end of the first copper bar 5 extends towards the other side and penetrates out of the other side of the injection molding body 1 to form a first copper bar heat dissipation, and the end part of the injection molding body 1 is penetrated to form a third copper bar heat dissipation end 10, the first copper bar heat dissipation end 8 and the second copper bar heat dissipation end 9 are positioned on the same horizontal plane, a plurality of assembling bushings 11 are arranged at the position of the injection molding body 1, and the assembling bushings 11 and the first copper bar heat dissipation end 8 and the second copper bar heat dissipation end 9 are positioned on the same side of the injection molding body 1.
In specific implementation, the assembly bushing 11 is composed of an assembly base plate 12 and reinforcing rib pieces 13 positioned at two sides, and an assembly hole 18 is formed in the assembly base plate (12).
In specific implementation, the ninth-degree bent portion 14, the first extending section 15, the reverse ninety-degree bent portion 16 and the second extending section 17 are sequentially formed at the outside of the injection molding body 1 by the third copper bar heat dissipation end 10.
In specific implementation, the surfaces of the first copper bar radiating end 8, the second copper bar radiating end 9 and the third copper bar radiating end 10 are all provided with mold positioning holes 19, and the mold positioning holes 19 are non-through holes.
In specific implementation, the injection molding body 1 on the back of the three-phase electrode 2 is distributed with a convex shielding cover 20 for shielding the current sensor from external magnetic field.
The product is manufactured by injection molding through a mold, the copper bar is wrapped with plastic, the high-cost mode of a connector and a copper cable is avoided, meanwhile, in the copper bar bending process, more pins are led out of each phase of copper bar to be close to the shell, the high heat-conducting property of the copper is utilized, electrical connection is carried out, and heat dissipation is carried out on the power module; in addition, a multi-clock structural form of mould injection molding is utilized, the sealing characteristic is designed, and an oil-resistant sealing ring is used for isolating the cavity of the driving motor from the cavity of the motor controller.
The product adopts the mode that the copper bar was moulded plastics, bends into corresponding shape through the copper bar, and cooperation motor controller and driving motor carry out the electricity and connect, design seal groove above injection structure, and collocation resistant oil seal circle carries out sealed design, and some metal bush of inserts are used for connecting the copper bar with the interchange and fix the casing on plastics simultaneously, provide certain pressure for the sealing washer simultaneously and guarantee sealed reliability.
The foregoing is a more detailed description of the present invention in connection with specific preferred embodiments thereof, and it is not intended that the invention be limited to the specific details set forth herein. For those skilled in the art to which the invention pertains, several simple deductions or substitutions can be made without departing from the spirit of the invention, and all shall be considered as belonging to the protection scope of the invention.
Claims (3)
1. The utility model provides an exchange and connect copper bar that is used for motor controller to go up to have supplementary heat dissipation function which characterized in that: the injection molding device comprises an injection molding body (1), wherein a three-phase electrode (2) is arranged at the position of the injection molding body (1) at the periphery of the three-phase electrode (2), a sealing groove (3) is formed at the position of the injection molding body (1), a sealing ring (4) is embedded in the sealing groove (3), a first copper bar (5), a second copper bar (6) and a third copper bar (7) are further arranged at the position of the injection molding body (1) respectively, the first copper bar (5), the second copper bar (6) and the third copper bar (7) form a three-phase copper bar matched with the three-phase electrode (2), the first copper bar (5), the second copper bar (6) and the third copper bar (7) are positioned on the same horizontal plane, the three-phase copper bar and the three-phase electrode (2) are distributed at an included angle of ninety degrees at the position of the injection molding body (1), the other end of the first, the other end of second copper bar (6) extends to the opposite side, and wear out body (1) the opposite side of moulding plastics and form second copper bar heat dissipation end (9), the other end of third copper bar (7) is bent ninety degrees back and is extended outward, and wear out body (1) the tip of moulding plastics and form third copper bar heat dissipation end (10), first copper bar heat dissipation end (8) and second copper bar heat dissipation end (9) are located same horizontal plane, body (1) department of moulding plastics is provided with a plurality of assembly bush (11), assembly bush (11) and above-mentioned first copper bar heat dissipation end (8) and second copper bar heat dissipation end (9) are located the homonymy of body (1) of moulding plastics.
2. The alternating-current connection copper bar with the auxiliary heat dissipation function for the motor controller as claimed in claim 1, wherein: the assembling bush (11) is composed of an assembling base plate (12) and reinforcing rib pieces (13) located on two sides, and assembling holes (18) are formed in the assembling base plate (12).
3. The alternating-current connection copper bar with the auxiliary heat dissipation function for the motor controller as claimed in claim 1, wherein: the third copper bar heat dissipation end (10) forms a ninety degree bending part (14) and a first extension section (15) outside the injection molding body (1) in sequence, and the reverse ninety degree bending part (16) and the second extension section (17) are arranged.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010881171.5A CN111952738A (en) | 2020-08-27 | 2020-08-27 | Alternating-current connection copper bar with auxiliary heat dissipation function for motor controller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010881171.5A CN111952738A (en) | 2020-08-27 | 2020-08-27 | Alternating-current connection copper bar with auxiliary heat dissipation function for motor controller |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111952738A true CN111952738A (en) | 2020-11-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010881171.5A Pending CN111952738A (en) | 2020-08-27 | 2020-08-27 | Alternating-current connection copper bar with auxiliary heat dissipation function for motor controller |
Country Status (1)
| Country | Link |
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| CN (1) | CN111952738A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113517589A (en) * | 2021-07-12 | 2021-10-19 | 昆山维开安电子科技有限公司 | Three-phase alternating-current copper bar capable of being filled with sealing ring |
| CN114268193A (en) * | 2021-12-28 | 2022-04-01 | 臻驱科技（上海）有限公司 | Vehicle, electric drive system and processing method thereof |
-
2020
- 2020-08-27 CN CN202010881171.5A patent/CN111952738A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113517589A (en) * | 2021-07-12 | 2021-10-19 | 昆山维开安电子科技有限公司 | Three-phase alternating-current copper bar capable of being filled with sealing ring |
| CN114268193A (en) * | 2021-12-28 | 2022-04-01 | 臻驱科技（上海）有限公司 | Vehicle, electric drive system and processing method thereof |
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